body {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
}
ul, li, p, input {
  margin: 0;
  padding: 0;
}
button {
  outline: none;
}
li {
  list-style-type: none;
}
.ts-app {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 0 10px;
}
.todo__list--wrapper {
  width: 100%;
  flex: 1;
  margin-top: 10px;
}
.todo__list--wrapper li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
}
.todo__list--wrapper li + li {
  border-top: 1px solid #ccc;
}
.todo__list--wrapper button {
  display: block;
  width: 50px;
  height: 30px;
  border: 1px solid #ccc;
  background-color: #fff;
}
.todo__list--wrapper .is-done p {
  color: #ccc;
  text-decoration: line-through;
}
.todo__item--desc {
  flex: 1;
  word-break: break-all;
}
.todo__item--desc input {
  width: 100%;
  height: 30px;
  box-sizing: border-box;
  border: 1px solid #ddd;
}